Phonograph attachment.



PATENTED JUNE 25. 1907.

0. L. HOLM. PHONOGRAPH ATTACHMENT.

AP PLIOATION FILED SEPT. 20, 1906.

3 SHEETS-SHEET l.

A mmmmmmmmm @EEEEHEW June mica wwweoozo No. 858,184. PATENTED JUNE 25, 1907.

0. LI HOLM.

PHONOGRAPH ATTACHMENT.

APPLIOATIONPILEDS'E?T.20,1906.

swans-$11331 2.

(litre amen s PATENTEILJUNE 25, 1907.

Ems 58,184.

G. L. HOLM. PHONOGRAPH ATTACHMENT.

APPLIOATION FILED SEPT. 20, 1906.

3 SHEETSSHEET '3 w i/twmwo To all whom it may concern.- I Be it known that I, CHRISTIAN L. Hour,

' make and use the same.

This lnventlon relates to improvements in UNITED s T S- OFFICE.

CHRISTIAN L. HOLM, OF SPOKANE, wAsnineroNp PHONOGRAPH ATTACHMENT.

Specification a Letters Patent.

mated June 25. 1907.

Application filed Ezeptember 20,'1906. swam. ssa,5s7.'

,. mechanisms for repeating the records on pho:

nographs.

The object of the.invention is .to provide- 'a mechanism of this character of simple and compact construction, which may bequickly and easily adjusted for use upon variousv kinds and sizes of phonographs for repeating a record in full or in-part as many times as may be, desired.

With the above and other objects in Vl8W,.

the invention consists of certain. novel features of construction, combination and arrangement ofarts, as will be hereinafter described and c aimed.

In the accompanying drawings Figure 1' 1s a top plan' view of a phonograph, showing the invention mounted thereon, parts being broken away to more clearly illustrate the construction; Fig. 2 is a front elevation, with parts broken away Fig, 3' is an end elevation; Fig. his an elevation of theopposite end of. the attachment or mechanism; and- Fig. 5 is a vertical transverse sectional view, taken on the plane indicated by the line 5 -5 inFigl.

Referring to thedrawings by numeral, 1 denotes the improved repeatinglmechanism, whichisin the form of an attachment adapted for use upon phonographs, of various kinds and sizes. As shown it is mounted upon a of a casing or cabinet 2, in which is mounted a suitable motor" and controlling mechanism therefor. I Upon the top 3 of-the casing 2 are provided suitable bearings 4, in which is mounted for rotation the usual screw 5 provided at one,of its endswith a holder6 for the cylindrical record 7. The feed'screw 5 is driven by'a belt 8, which extends through a slotin the top 3 and connects wheels uglony the motor and -feed screw, as will be rea -understood-. Suitably mounted above the top 3 at its rearis a longitudinally extending guide rod 9, upon which is slidably mounte I 3, as clearly'sh'own in Figs. 1 and 2. well known formof phonograph, consisting a sleeve or tube 10 having at one end an arm 11 provided with a half-nut to engage the feed screw 5 and at its-opposite end w1th an arm 12 carrying a reproducer 13 from which projects a horn or trumpet 14. The sleeve 10 is adapted to both slide'and rotate upon the guide rod 9, so that when the reproducer is raised, the half-nut on the arml I-Wil-l be disengaged from the feed screw. The above parts are old and well known."

;The repeating mechanism 1 comprises a suitable supportlng frame 15 atlapted to rest upon the top 3 of the caslng 2 and to be detachably secured thereon by a clamp 16. The frame 15 upon which the operative parts ofthe mechanism are mounted comprises two base blocks 17, which serve as supporting feet and which have pro ectlng vertically frbm them'screw studs 18. The

studs 18 enter threaded sockets 19 provided upon two end plates 20, 21, which are rigidly connected by a cylindricalv casing 22 and a rod 23. The parts 21, 22, 23 form a rigid jupper frame, whichis vertically adjustable owmg to the screw studs 18. The base blocks or feet 17 are formed with openings through which the clamp 16 extends and slides, so that the supporting frame 15 may be moved to any point u on the clamp and thus adjusted llOIlZODtitl Y. A setscrew 24 or attachment provided in one of the feet 17 is adapted to old the frame and clamp rigidly together in an adjusted position. The clam 16 comprises a tubu ar rod 25, which is internally screw threaded and'has; screwed into one of its ends a clamping jaw 26 adapted to engage one-end of the top 3. In the op osite end of the tube 25 is screwed a ,thr'ea ed rod 27 having at its outer end .a finger piece 28; A clamplng j aw29 is loosely mounted upon the :rod 28 to engage the opposite end of the it plp e clam 16 is thus made extensible, so that it may e secured upon phonographs of various slzes.

The mechanism mounted uponthe upper portion of the supporting frame 16 is con trolled by the reproducer l3, and is adapted to automatically lift the reproducer from the record when the latter has been played in full or'irtpart, as may be desired, then return the reproducer to its starting point and lowerit upon the record, so that the latter may be repeated. This, mechanism comprises a vertically swinging support 30, which is dis posed normally beneath a projection 31 upon the repro ducer just out-of contaet,witli-;thesame and is adapted to raise and lower the reprodncer and serve as a' guide for thesame when it is elevated and being returned.

frame' or lever having a longitudinally egi ,tendingportion and two end portions 32 33,

This support 30 is in the form of a U-shaped which are pivoted in longitudinalalinement' .at 34' upon the outer faces 'of the twouside' VII O plates 20, 21. The frame 30 is adapted to be elevated and retained iii-such position by pinion 40, which meshes with a gear 41 loosely mounted upon a stub shaft 42 -pro jecting from the innerface. of the plate 21. Fixed to the inner face of the gear 41 is a pinion-44, which meshes with a gear 45 loosely mounted upon the shaft 46 of a spring drum '47. This drum 47 is disposed in the cylindrical casing 22 and has one end of its shaft seated in a bearing formed in a screw cap or plug 48,- which closes one end of'the casing 22.- The other end of the drum shaft 46 ex tends through a bearing opening in the plate- 22 and has upon it a winding key 49. Surrounding the drum 47 is a coil spring 5.0,

which has one of its ends secured to said drum and its other endto the casing 22, as

i shown-in Fig. 2.

ratchet wheel 51. adapted to' be engaged by a pawl 52 provided upon the adjacent end of the drum 47 and held inengagement-with said ratchet wheel by a spring, as seen in Fig. 5, The camplates37, 38 areadap'ted to serve asescapemen-ts for the-spring and are formed at diametrically opposite points with stop projections 54, which coact with a trip j device 55,; which is in turn. operated or controlled by the repro'ducer 13.

I This trip device comprises a longitudinally extending ,rod 56 .arranged between the plates 20, 21

and having reduced ends 57, 58 which extend through and slide in "openings in the plates 20, 21 and are adapted to coact with the steps 54 on the cam plates orescapernents. ,These reduced ends 57, 58 fornrdetents,

which are alternately .moved into and outjof the path of rotation of the-stops 54011 the two cam plates .37, 38. The reduction. of the ends of the 'rod56 formannular shoulders 59,

whicl-iserveto limit the sliding movement of the trip device and the length of-their'stop ends 57, 58 is. such that when the'shoulder-59 at one end of the rod is engaged withits ad jacent plateof the frame 15, the stop at the opposite endof the rod'will be drawn into the opposite end plate of the 'rame15 and will be These Fixed upon the gear 45 is a,

reference to Fig. 1; The reprodueer 13-shifts f the. trip rod 55 by engaging adjustably stop" arms 60,. 6-1 .provided upon said rod; Thesestdp arms are here shown in the form ofclamps adjustable on the rod 56 by set -.-serews"62 and having their inner ends 'hifurcat'edor slotted to loosely receive the supporting rod 30. By adjusting the stoparms 66, 61 upon the trip rod 56 any portion of. the phonograph record may be repeated by the mechanism. vIn order to return therepro' dueer to its starting or initial position after it i has been elevated from the record and the feed nut has been disengaged from the feed screw, I provide a spring-actuated winding drum or wheel 63 with a belt, cord or other flexible connection 64, which has its free end.

attached as at 65 upon theprojection 31 of the reprodueer. The cord 64 is wound upon the grooved periphery'of the wheel '63. and 7 passes through a guide-eye 66 upon a cylindrical casing 67 secured upon the end 32 of the reproducer support 30. .The' wheel or drum 63 is mounted upon one end of a shaft- 68,whi'ch extends through the casing 67 and a screw cap 69 on one end of said casing. This shaft and its wheel'63 are actuated by a coil spring 70 surrounding the shaft within .the casing. This spring may be tightened by holding the wheel or dru1n 63 against movement andturning a knob 71 upon the outer end of the shaft 68. In operation, the projection 31 on the reproducer 13 when the latter has moved the desired distance, engages the stop arm 61 and shifts the trip rod 56-longitudinally from its normal position shown in Figs. 1 and 2, in which it will be observed the support 30-is disposed directly beneath and just out of contact with the said projection, the reprod-ucer being in its loweredposition. When the rod 56 is thus shifted, its end 57, is'move d' into the path of 'one of the stops upon the cam plate 38 while its opposite end 57 is retracted from one of said stops on the cam plate 37, j the latter being thus released will be given a partial rotation owingto the train of gearing whieh connects its shaft- 39 to the spring-actuated drum 47. The rotary movement of the cam plate 37 is limited by the engagement'of one of the steps 54 on the other cam plate 38with the .end 58 of the trip rod, The partial. rotation-of the plates 37, 38.causes their cams 35, 36 to elevate the-reprod'ucer support 30 and: hence the reproducer itself. The elevation of the reproducer causes the nut upon the arm 11 to bedisengagedfrom thefeed screw 5 and-when this occurs, the spring'70 will rotate the drum "or wheel 63 to wind the cord 64 thereon" and shift the repro ducer toits initial or starting position. When it reaches this position, -rtsprojection 31' engages and moves the stop arm62, so that the trip rod 56 is again shifted longitudinally but in the opposite direction. This movement of the rod causes its end 57 to project into the 7 path of one of the projections 54 on the cam plate 37 and retracts its opposite end 58 from one of said projections upon the other cam plate 38. The latter is thereby released, so that the plates will be again partially rotated. This partial rotation will permit the cams to move to their normal positions shown in Figs. 3 and 4 and thereby lower the reproducer support 30. When this occurs the reproducer itself is lowered upon the record and the nut on the arm 11 again engaged with the feed-screw. This operation may be-repeated as many times as desired.

It will be observed that the device or attaclnncnt is of very simple and compact construction and that its many adjustments permit it to be used upon phonographs of various kinds and sizes. By removing the clamp 16 from the feet 17, the latter may be turned to adjust their screw'studs inv the socket 19 and thereby permit of the vertical adjustment of the supporting frame with respect to the phonograph. This frame may be adjusted horizontally with respect to the phonograph by shifting it upon the clamp and the latter is extensible so that it may be applied to a phonograph having a casing or cabinet of any size. By holding the wheel or drum 63 in turning the knob '71, the tension of the spring 70 may be varied, so that.

the reproducer will be returned as quickly, or

as slowly as may be desired. By adjusting.

the stop arms 60, 61 upon the trip rod 56 the reproducer may be caused to repeat any de-.

sired portions of the record.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters-Patent, 18

1. In a mechanism for repeating phono-' 1 producer to alternately engage projections of the respective revoluble devices and control the revolution thereof.

2. In a mechanism for repeating phonograph records, a supporting frame, a spring actuated shaft therein, a second shaft in said frame geared to said spring-actuated shaft, plates upon the ends of said second shaft having projections and cams, a substantially U-shaped swinging frame pivoted upon the first-mentioned frame and having end por tions to engage said cams, and a connecting portion to raise and lower a reproducer. and

serve as'a guide for the latter when elevated,

upon said trip rod adapted to be engaged by the reproducer, and means for returning the reproducer when elevated by said support.

8. In a mechanism for repeating phonograph records, a supporting frame, a springactuated shaft therein, a second shaft in said frame geared to said spring-actuated shaft, plates upon the ends of said second shaft having projections and cams, a substantially U-shaped swinging frame pivoted upon the first-mentioned frame and having errd portions to engage said cams, and a connecting portion to raise and lower a reproducer and serve as a guide for the latter when elevated,

a shiftable trip rod slidably mounted in said frame and having detents at its ends to be moved into and .out of the paths of the pro jections on said plates, adjustable stop arms upon said trip rod adapted to be engaged by the reproducer, and spring-actuated means upon. said support for returning the reproducer when the latter is elevated by said support.

4. Ina mechanism for repeating phonograph records, a supporting frame, a springactuated shaft therein, a second shaft in said frame geared to said spring-actuated shaft, plates upon the ends of said second shaft having projections and cams, a substantially U-shaped swinging frame pivoted upon the first-mentioned frame and having end portions to engage said cams, and a connecting portion to raise and lower a reproducer and serve as a guide for the latter when elevated, a shiftable trip rod slidably mounted in said frame and having detents at its ends to be moved into and out of the paths of the projectionson said plates, adjustable stop arms I upon said trip rod adapted to be engaged by the reproducer, means for returning the re-.

producer when elevated by'said shaft, and

means for adjustably mounting said frame upon a phonograph.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHRISTIAN r. l-IOLM.

Witnesses:

W. F. HAHNERT, C. E. BEAM. 

